For those who love admiring ancient artifacts, you may want to visit Rome while they’re still there. According to police, there has been an outbreak of tourists stealing mosaic pieces, marble mile markers, cobblestones and other pieces of the city’s history.

Luckily, airport security has been vigilant and is on the lookout for the items. In fact, they’ve been able to return a large amount of artifacts stolen in the last six months. Moreover, they’re finding the majority of the thieves are travelers coming from Britain and northern Europe. These people are not arrested, but instead given a stern warning.

Says Police Chief Antonio Del Greco, “I can understand the legend and splendor that is Rome but that does not mean bits of it should be stolen … If they want a souvenir of their visit then they should buy something from a shop.”